[GitHub] [tomcat-native] ivmaykov opened a new pull request #1: Fixed a bug with File.infoGet() and File.getInfo() methods that sometime...

[GitBox <gi...@apache.org>]

ivmaykov opened a new pull request #1: Fixed a bug with File.infoGet() and File.getInfo() methods that sometime...
URL: https://github.com/apache/tomcat-native/pull/1
 
 
   ...s caused segfaults
   
   The problem is that the stack-allocated info structure is not being zeroed-out before the call to apr_file_info_get(). That function doesn't seem to zero it out either, and only sets the requested fields. As a result, the string pointers info->fname and info->name can point at random memory locations, which can crash the JVM with a segfault when it attempts to copy the file info fields from the C struct to the Java FileInfo instance in fill_finfo() - specifically, the NewStringUTF() call that copies the fname and name strings.
   

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